<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<style>
			table {
				border: 1px  solid   #aaa;
				width: 500px;
				height: 200px;
				/* 边框崩塌：分离 */
				border-collapse: separate;
				/* 边框崩塌：崩塌 —— 边框合并 */
				border-collapse: collapse;
			}
			td {
				border: 1px  solid   #aaa;
			}
			td:first-child {
				background-color: #dfd;
			}
			td:last-child {
				background-color: #ddf;
			}
		</style>
	</head>
	<body>
		<h3>小知识：表格相关的样式</h3>
		<!-- table>tr*6>td*4 -->
		<table>
			<tr>
				<td>11</td>
				<td>12</td>
				<td>13</td>
				<td>14</td>
			</tr>
			<tr>
				<td>21</td>
				<td>22</td>
				<td>23</td>
				<td>24</td>
			</tr>
			<tr>
				<td>31</td>
				<td>32</td>
				<td>33</td>
				<td>34</td>
			</tr>
			<tr>
				<td>41</td>
				<td>42</td>
				<td>43</td>
				<td>44</td>
			</tr>
			<tr>
				<td>51</td>
				<td>52</td>
				<td>53</td>
				<td>54</td>
			</tr>
			<tr>
				<td>61</td>
				<td>62</td>
				<td>63</td>
				<td>64</td>
			</tr>
		</table>
	</body>
</html>
